The owner installed some light fixtures for him and built another hall closet.
Until, that is, the proud owner installs one of today's high quality sound cards.
To keep up with the competition, the young owner has installed cable television with 16 channels in every room.
In the 1970s, the former owners installed a colony of monkeys into the ruins.
One former owner had installed southwestern floor tiles, which were eventually covered by black carpeting.
A previous owner had installed a wall of mirror above the sink.
Because of the drainage problems, some owners installed them at their own expense.
What has been missing is the political will either to tell the owners to install this technology or to create a market to encourage that investment.
The new owner also installed floor-to-ceiling windows throughout the building.
The owner may install booths, which would class it up a bit.